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    Creative Labs SB0300 24bit external USB sound device

    Interesting post andreidi, in the USA (where I'm not from) they would say that "you got lucky" The 500mA rating on USB2 ports is really a nominal limit and not hard and fast, all the Laptops and Desktop motherboards that I have worked on in the past ten years have used polymeric self resetting...
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    Creative Labs SB0300 24bit external USB sound device

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    Creative Labs SB0300 24bit external USB sound device

    It looks okay to me Julian, centre pin of the power connector is positive and pin1 of the USB connector was not connected to anything and pin 4 was connected to common (ground) as made by Creative Sound Labs so it should work fine. Of note the power pack that comes with the Sound Labs SB0300 is...
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    Creative Labs SB0300 24bit external USB sound device

    Steve beat me on this response and I can't see why powering it from a USB3 port should not work as long as you get the polarity right with the USB2 Type B receptacle and the power socket. Pins 1 & 4 are +5VDC and ground respectively for a type B USB socket/receptacle. If you are happy to always...
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    Creative Labs SB0300 24bit external USB sound device

    Creative Sound Labs SB0300 Inductance Calculations The missing attachment from my last reply, the attached zip file contains an MS Word document and Excel spreadsheet detailing inductance calculations for cores with and without air gaps.
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    Creative Labs SB0300 24bit external USB sound device

    Hi Nexusian The DC current required for the SB0300 model is about 600mA which exceeds the USB 1/2 current limit of 500mA hence the need for an external power pack/supply. The 220uH inductor therefore needs to be able to handle this current without saturating and the surface mount ferrite core...
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    Creative Labs SB0300 24bit external USB sound device

    Hello Anton, I do not have the circuit diagram for the SB0300 unit, I did send Emails to Creative seeking help and copies of the circuit diagram but they did not reply so I then telephoned them in Singapore and the reply was that they do not provide this information which I thought was quite...
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    Creative Labs SB0300 24bit external USB sound device

    Faulty Creative Sound Labs SB0300 24bit external USB sound device. The fault symptoms are: The internal RED SPDIF optical digital audio output LED is lit but the power, CMSS and audio mute LEDS are all OFF and the unit is not working. The fault turned out to be a shorted turn on the...
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